Bolting, sifting, and grading machine.



TfS-S HEBT 2.

Patented Nav. 18, i933 MAGHIN TH'G, AND GRADI 51K l). d@ J. HNTZ, JR.

m9, SI

APPLICATION FILED FEB,1, 1897.

EOL 1.

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W. D. GRAY 65 J. G. HNTZ, im BOLTING, SHTING, AND GRADING Mmmm-L APPLIUATIGN FILED EB. 1, 1897,

n: l* n v Y a l. linnn, sbo-wing the Upper porion thereoi G-r NEE TUHH HINTZ, JR., F lVLLYVAU'KEE, WISCONSIN, ASSGNORS,

SIGNMENTS, TO ALLS-CHALMS MANUFACTURING COMPANY, A

BGLTING, FTNG, ANI) GRABEEN WM5-CHINE Applies-.tion filed February L 1887.

lie ii. l i1'- i're, liminer i). GRAY l Jr., citizens oi `the ing zii, Milwaukee, in the and Sie-ie oi? Wiscon- .in here inf; l. eeibziin new miel useful ixi'iprovenieis in Boliing, Sii't-ing, and iii-ailing Mohines.. oi 'which the following if; speeiicetion.

@or 'invention relebee to that type of bolting, y and gmclmg machines set forth in. lzioni; of the 'Uniteri Stories, No, 597,412, granted to John G. Hiniz, Sir., Jerk nary llth, 1398, and in iaient No. 559,378, grr-.niod o Williai'n I). Gray, May 5th, 1396.

The 'present invention has reference particule ly to meen-s for automatically and constantly cleaning the cloth or screening ronny oi bil vine liuin, and. keeping; its meshes open.

The principle, and ehe construction and mode oi? operation of 'the apparatus Will be explained. in conn'eotion with the acoompen trunk through which cleaning nio/aerial isA i to zhe head of the machine; Fig. i,

lolly sectional elevation oif the elevator :and ihe oentrel return spout Jaherein; Fig. 5 a. horizonizil secion, on ille line u, u, of und Li, but on a smaller sonic; Fig. ii iieel Section on the line o, o, of Fig. :i seeiion on the line w, w, of Figs.

Fig. o, vveotion on the line 5i .f a top pln'imyiew of o. me

the invention in n modi- 8 :i :gicle elevation of the xei'l vertically ior Convenience chine emboA efl 'forni seine, ssliifrtf of illnsiret valves con I. A'eerl or delivery of cleaning'g; materials; ,g2 il n horizontoi' section of the machine elio'vsf'n in Figs. 7 and 83 Fig. '12, o veriicigl 'section of a lower portion ihereof; l'fig l a Sefttionnl View showing Ehe in he sieve from the center owerol gallery oi' the shell or casing.

it-ie in vnreoiioe ai; the present Enne, lfor ineny yefzrs, io intro cines-3 who ih@ ook o be graded, a :suitable qimnity of iz'siieriohof different nature or Specification of 'Letters Pateni.

n; 9 and l0 details ofY Patented Non. i8, BH3.

serial No. sensei.

quality, es brein, whole grain, peas, Shot, or

the like, which serves either to loosen up the mese, oi* to clear ille meshes of the sieve or i screen, or both. This is found quite e'iioemons in practice, oui 1t requires eure and at iomion iin-maintain at all rimes o. proper supply oi' suoli material, and to insure its even distribution through the stock. 1Wih vertical nominees, ibis becomes doubly diili enit, and portioniarly Where there is 'no roiaion the machine or oiE the sieves about e xecl center or axis.

Uur invention eims to secure such nnb form and certain supply omi distribution in machines having) n spiral 'or soreiwlile sifting warped surface winding about. u vert-ical exis, :nifl in which the motion is a bodily inovemenif or travel of the sieve in e horizontal plone and in e. :substantially circular path.. v

Another object of the inifention is to efi oienly balance Aille meehiiie.n

Figi'. l io 6 inclusive illust-rote the invention in its preerreol form, and these will be ldescribed A inioetes a. strong framework, of Woool vor other suitable materiel, within which suspended e cylindrical body, shell or caeing B, the heads or top and bottom of which Iareusuolly inode of Wood,` Whilethe bocly or cylinder is of sheet metal,y -VVit-hin this body, which is suspended by rods or hangi ers a, having bell sind socket connections With freine A and with shell or body; B,

there is arrange e partitioned cenirai feed. trunk, and between this and the shell n. spiral sieve C and corresponding Vgatherbozud B, as in the patent to Gray, referred to.

At the top of the shell or body B there ie :i cent-ral casting Z) which receives the Crank nin e of a hele-noe Wheel E, and at the bot-- tom there is a Similar casting 'CZ which receives the erzmk pin e of o balance Wheel F. The upper wheel E is Carried by :i vertical shaft Gf,-turni11g in. suitable boxes or bearinge, and provided with a bevel pinion f, which meshes wil' f nl receives motion from a similar bevei 1f n y, 'Carried by horizontal driving;t H, mounted in' boxes on :Ehe top of frame The lower balance wheel has n short vert-icul shaft oi spindle, resting in a suiijabl'e step or boi; fz, as shown.

*The crank pin c `b' bal'a`nce wheel E and the crank pin e of balance Wheel F are in line'and their axes coinciden/'ith the central axis of the shell or'body B which has its side Walls made up of an infinite' number ot plane sides equidistant from the axis, constituting a cylindrical structure in this specific showing and mathematically considered being the limit of a regular prismatic structure which it mayetruly be termed, and as such it Has its "side Wallsl symmetrically placed with reference to this common een tral axis.

lt will be seen that when shaft H is rotated, the body, shell or casing B with its contained feeding trunk, sieves and gatherboards Will be bodily gyrated horizontally, in a circular'path.

, The stock is fed to the machine through a flexible spout or spouts I, as indicated.

J indicates a vertical trunk or pipe, advisably of sheet metal, aflixed to the side of body, shell or casing B, and consequently movable therewith. Within the trunk J is a xed spiral plate or strip i, in the nature of a continuous or unbroken screw conveyer, Winding about a central pipe or tube .7', open from end to end, and terminating'below the upper and above the lower end .ot trunk J,as shown in F ig. 2, said trunk and spiral plate or strip producing a conducting channel through which material is caused to ascend from the toot of the sieve or screen to any higher level.

rlhe direction of winding of the sieve, that is to say, to the right or to the left, Will of course depend upon the direction in which it is to be moved, as the advance of the material is effected by a movement of the sieve from beneath the'material. The direction of Winding of the spiral strip or plate i is the reverse of that of the sieve, be cause it is the purpose of said strip to cause an upward travel of material within. and

vthrough the trunk, by an action exactly theopposite of that of the sieves upon thestock. In other Words, the material Within the pipe or trunk J is carried graduallyup- TWard by reason of the inclin il plane being quickly moved forward bem-.Ath said lnan terial; ,While the stock is carried gradually downward by reason of the spiral sieve be ing inoved quickly backward beneath the material. By thus employing a fixed spiral Weg/are enabled to cause an upward travel off material through the trunk J without employing any moving part, except as the trunk moves bodily with the chest or casing B. We are further enabled, by reason of the centrifugal force thus generated, to discharge material fromsaid trunk, laterally, at any desired point or oints in its height, by simply making suita le outlets and pro vidingA them with regulating gates or valves.

In practice, two or more grades or breaks l are often treated simultaneously," in the samemachine, one upon one section and another upon another section ofthe sieve. 'nsuch case itis desirable tolgleliver cleaning material to the several sections sep-K," arately. TWe therefore form a series of lateral branchesA le, opening from the trunk J at points in its height corresponding Vwith the heads or" diiierent sieve sections, and we yprovide each branch pipe with a. regulating gate or cut-oil Z, as shown in Figs. l, and S. By opening these valves or gates more or less, each with due regard to its height and to the quantity of material required, the several sieve sections may be accurately and certainly supplied. It is occasionally desirable to feed the cleaning material to one section of thesieve only, or to reduce the delivery to a sniallv quantity; and in such case there might be an undue accumulation of such material in the trunk J. To prevent this the central tube vj is provided, said tube serving to carry at once to the bottom ot the trunk any cleaning material that may rise above the' top ot the central tube j. It Will readily be seenv that any material entering the top of trunk- J or rising to the top of the spiral z' will at once fall to the bottom of inner tube y', and

gate it is provided with a `screw-threaded stein m, which passte through a holeor lies in a notch in an arm or bracket n, projecting from the side oit pipe 7c, thumb nuts 0,`c, h e ing screwed upon said stern, and arranged r to bear upon opposite sides of the supporting arm or bracket By properly setting these nuts the gate may be adjusted as desired, and the stem can be clamped fast to the bracket and thus made to hold the gate..y at its proper adjustment.

The base of the chest or body A is made with delivery compartments as in patentto Gray No. 559,378, intoand from which the different products are delivered.l The cleaning materials are delivered into'certain ot these compartments, with one of which the trunk J communicates bya chute. or" spout 79, Figs. l, 2 and 3.' From the trunk J a horizontal trunk g entends around; the

base of the shell or chest B to suchother,

section or sections as receive cleaningma; teria! from the sieve or sieves above.v Ehe tscreen material entering this ialerel trunk is calo ried along the same to the upright trunk l lov the motion of chestv li, and thus a continuous circulation of the material through the machine is maintained.

ln Fifi. to lil inclusive We `have shown a nicchie-ation, of our invention. in this a horizontal trunlr "l is carried in annular form about the top eithe- ,chest or shell E and serves to convey the cleaning material to a series of outlets fr, as shown in Fig. 7. The outlets may be mere openings through the top of chest er shell or they may he pipes ertenlfling to different levels Within the-chest. Each outlet is guarded or governed by a valve or slide s, of the form illustrated in Figs. 9 and lll, adjusted and `lield by a screw t. ln like manner, a trunk L connects the several. discharge spouts a through which the cleaning material is delivered, with 'trunk J, as indicated in Figs. 8, ll and ln. lhe cleaning material is supplied to trunk J through ay flexible pipe or spout M, or otherwise, and passes l'rom trunk J to trunk K by a o "anch or lateral pipe u., Figs. Y and S. Aitor atimc, the cleaning material becomes so Worn as to he unfit for use. To permitits ready removal in such vcase the trunk .l is provided with a removable bottom or gate N, Figs. l and 2, which being removed or opened, permits 4withdrawal of any desired portion or the whole' of said material. As under formez.' constructions, so in this, the casing is made removable in sew tions, to give free access to the interior of the machine, and to permit Withdrawal of sieve sections. 'it is desirable for this and other reasons toprovide for the readyT removal and replacement ol' trunk il. .Accordingly ,We step said trunk in a casting 'forming the chute or spout p, and We provide hinged clamping;- hoops or bauds w, which may he formed as parts ol or attachments to the lateral branch pipes 71:, or as separate holde1s,-bolh being represented in Fig. l. By simply turningback the clamping or binding' screws w, the. clamps are made free to open, and the trunk J may loe at once removed.

HVarious modifications may oe made in the `details of the apparatus"'without departing from the spirit of our invention.

l't will he seen that the conveyer or elevator maybe in the form of a. rotatable spiral, acting positively to elevate the cleaning material, and that other well known forms of elevating device may he used.

l/Vhile these are included Within the scope of our Ainvention and are in one sense equiva lents of the lined spiral, they are not the full or entire equivalents since they involve the apjjiliea-tion ofadditional power and the employment of additional devices to cause their actuation, Whereas kthis device acts Without the addition of any moving member and cumference of the sieve, and to compense-ee.

lor the increasing surface or area., due to the larger radius of #the sieve. It may also be carried to such an, extent as to produce accumulation of the material in that part of the sieve. 'It' is to be understood, how-1 over, that the mat-ter of inclining the sieve radially 1s Wholly optional with the cou-- structor and is not essential, to our invention or to the successful use of the nia-chine..

.in the foregoing description ive have used the term. inclined sieveior screen as in cluding both e .spi al euri-ace of continuf ous inclination and unbroken surface, and of a series ol stepped horizontal planes, one above and adjoiningv another; in er Words, the terni is designed to include loolh the construction more particolari; shovfn in the patent of William D. Gray, and that more particularly .set forth in the patent to' John Gr. Hintz, Jr., both hereinhefore cited.

ln using the term circular path i we have not meant to restrictJ ourselves to a movementin astrictly circular path, since it is possible to get goed results hy amove4 ment in an elliptical or angular path, pro vided the movement approximates a cir-cular movement. So, too, the casing :ind 'the spiral sieve, or screen within the same, may be of other than circular form, though avoidance of angles rendere such circular lorm advantageous.

it will he observed upon referring lo Fig'. l, that the chest l which is moved by alined cranks at its upper and lower ende stands between upper and lower counterloalanees E and This is important for the reason that in theorj, and practice, the center of a. balance wheel and `the center of the load should be dianietric,`in order to maire the machine balance properly. So here, it is important that the couutervveights he above and below the casing and its conta-ined sieve and the load thereon, in order that the center ol the counterbalancel,treating the two meinw bers E 'and l? as constituting in effect one counterbalance or balance Wheel, may he or be made `cliametric with the center of the load. By reason of this construction and arf, rangement, which We believe has never hefore been adopted in machines of this class, We are enabled to balance the machine so perfectly as to render unnecessary the use of a brace.

it will he observed that by reason of the spiral construction here shown, both as to lili.

rae"

lilla I Having thus described our invention, 'j )we 'claim 1s: 29

the sieve onscreen and as tothe elevator, we are'enabledl to dispense with Wings, blades, shoulderaledges, pockets 'and the like, to aid in the feeding of the material. Such devicesor positively engaging, holding, and throwing the material are objec in that they tend to vbreak up the ffstoppages; nor 1s` the material under our construction thrown against or engaged or struck by shoulders, blades, ledges or the like. what l. ln a bolting, sifting or grading'ma chine, the combination with a circular sieve or sieves, inclined from the receiving to the delivery end, of means for impart-ing a gyratory motion thereto in a horizontal plane, acircnlar helical elevator' movable in a circular path With said sieve and serving to elevate cleaning material from `a lower to a higher levelin the machine through the nio tion given said material by such horizontal gyratory movement. Y

2. ln combina-tion with a circular helical sieve, means for bodily moving the same in a circular path in a horizontal plane, and an elevating device attached .to 'and movable with the sieve, and consisting of a circular helical conducting channel adapted to take cleaning end of the sieve and to return the same conf' tinuously to the head or upper end thereof, through the motion impartedto the sievev and. to the device. y

3. lli combination with a circular helical sieve and with means for imparting aegyra'- tory motion thereto in a horizontal plane, granular cleaning material placed'upon the sieve to clear its meshes, and/a circular helical elevator extending from a lower partof the sieve toward its head or upper part thereof and movable with the sieve and serving by reason o/ such motion to return the cleaning material from' said lower to said hivher point.v l

Ll. ln combination with a'circula'r helical sieve,'a casing, a trunk or pipe extending from a higher to a lower part of said casing and communicating with spaces above and below the sieve, an inclined helical plate or strip Within said trunk or pipe, and means yfor bodily moving the sieve and trunk hori Izontally in a substantially circular path, whereby cleaning material placed upon the sieve and delivered by it to the lower part ot' said trnnlr may be elevated through said trunk and delivered again upon the sieve.

material from vthe tailor lower tween the Wall ot 5. ln combination With a helical sieve winding in one direction lfrom a higher to Va lower level and Witha casing therefor, a pipe extending from said lower toward said upper part o'said sieve, a lixed plate winding horizontally within said pipe from its lower 'end to a point at or near its top in a direction the, reverse of that in which the sieve Winds, branch pipes connecting the said pipe Withfthe sieve casing at or near the upper and lower ends of 4said pipe, and means for horizontally moving said sieve and pipe in a substantially circular path.,

6. The combination of a helical Vsieve Winding in one direction'-a casing therefor, a xed helical elevator Winding in a reverse direc-tion, and means tor bodily moving said sieve and said elevator horizontally in a substantially circular path whereby stocli and cleaningvmaterial are caused to descend the sieve, and cleaning material is caused to aseend the elevator.'v

7. ln combination Wit-h a casing and a helical sievetherein, means for moving said casing and sieve 'circularly inv a lhorizontal plane, a pipe or trunk carried by said casing `and,provided with branch pipes"con. necting with said casing, valves applied to said branch pipes whereby cleaning material placed upon said sieve and delivered to the lower part of said trunk may be elevated through said trunk and delivered upon said sieve at. die'rent points in any desired quantities.

8, ln combination with a' shell or casing and a helical sieve therein, an upright cylindrical trunk communicating with said cas-l in@ ata plurality of difterent levels, a fixed helicalplate Within said trunk, and means Yfor moving said casing in a substantially circular horizontal path. A

9. lnfcomhination with a casing and a helical sieve therein, a trunk carried by said casing, an open ended central tube Within said trunk, a xed said trunk and said central tube, branch pipes connecting said trunk the interior of said casing, and means for moving said casingin a substantially circular horizontal path.

10. ln combina-tion with a casing, a sieve therein, means for moving said casing and sieve in a circular horizontal path, and a trunk detachably secured to said casingand provided with pipes connecting thereto, and havingfixed internal helical plate, said helical plate serving as cleaning material may be carried upwardlyto an upper portion of said sieve, through momentum due to the motief; of the structure as a Whole.

l1. In combination with a casing containing a helical sieve, a trunk 'communicating with said casing, an elevator Within said detachably securing trunk, and means for said trunk to said casing.

an incline over which producinufa gyratory motion of said casing and trun whereby said cleaning matemal is caused to ascend said trunk for delivery to said casin 13. In comination with a casing, an upright trunk, .aJ helical plate within said trunk, a trunk extending horizontally at the to of said casing and having outlets for de ivery of 'cleaning material to said casing from diierent portions thereof and connecting to said upright trunk, and a trunk eX- tending horizontally at the base of said casing and having inlets for the reception of cleaning material from different portions of said casin and connecting to-sa1d upright trunk for elivery of said cleaning material thereto.

14. In combination wit-h a casing and a sieve therein, an elevator trunk, branch pipes connecting said trunk and said easing, valves or gates controlling said branch pipes, and mea-ns for adjusting and holding said gates or valves.

15. In a bolter, the combination of a shell or body of regular prismatic structure, rods or hangers for supporting said shell or body, alined cranks or eccentrics for impart-ing gyratory movement thereto in a horizontal plane, said shell or body having its side walls symmetrically placed with reference to the common axis .of said alined cranks and to the'axis of said prismatic structure, a helical sieve structure symmetrically disposed within said shell or body, counterbalances located respectively abo-ve or below said shell or bod and a separate bearing in said shell for said alined cranks closely adjacent each of said counterbalances.

16. The combination of a shell, means for mounting said shell for horizontal gyration,

a vertical crank structure for gyrating said shell, a helical sieve structure symmetrically disposed within said shell, counterbalanceA weiglfts for said shell above and below same, said shell being of prismatic structure and having its side walls 'symmetrically placed with reference to the axis of said crank structure, and a separate bearing in said shell for said crank structure closely adjacent each of said counterbalance weights.

17. The combination of a shell, means for mounting said shell for horizontal gyration, 50 a vertical crank structure rotatable in said shell, a helical sieve structure symmetrically disposed within said shell counterbalance weights connected to said crank 'structure and located above and -below said shell, whereby said shell is counterbalanced during gyration, said shell being prismatic in structure and having its side walls symmetri-Gall j placed with reference to the axis fofgsa-i crank structure, and bea-rings in said-shell for said crank structure where the same 1s rotatable therein, each of said bearings be-r ing closely adjacent to one of said counterbalance weights.

In witness whereofl we hereunto set our hands in the presence of two witnesses.

'WLLIAM'D GRAY. JOHN G. HINTZ, JR.

Witnesses: l

. B. T. LEUZARDER,

Gao. H. BURNHAM. 

